Low temperature structural instability of tetragonal spinel Mn 3O4

Jae Ho Chung; Kee Hwan Lee; Young Sang Song; Takehito Suzuki; Takuro Katsufuji

doi:10.7566/JPSJ.82.034707

Low temperature structural instability of tetragonal spinel Mn ₃O₄

Jae Ho Chung, Kee Hwan Lee, Young Sang Song, Takehito Suzuki, Takuro Katsufuji

Department of Physics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Tetragonal ferrimagnetic spinel Mn₃O₄ shows complex magnetic phase transitions due to competing antiferromagnetic interactions involving Mn^2+/3+ ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below TN. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin-lattice coupling.

Original language	English
Article number	034707
Journal	Journal of the Physical Society of Japan
Volume	82
Issue number	3
DOIs	https://doi.org/10.7566/JPSJ.82.034707
Publication status	Published - 2013 Mar

Keywords

Ferrimagnet
Geometrical frustration
Structural instability

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.7566/JPSJ.82.034707

Cite this

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abstract = "Tetragonal ferrimagnetic spinel Mn3O4 shows complex magnetic phase transitions due to competing antiferromagnetic interactions involving Mn2+/3+ ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below TN. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin-lattice coupling.",

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AU - Chung, Jae Ho

AU - Lee, Kee Hwan

AU - Song, Young Sang

AU - Suzuki, Takehito

AU - Katsufuji, Takuro

PY - 2013/3

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N2 - Tetragonal ferrimagnetic spinel Mn3O4 shows complex magnetic phase transitions due to competing antiferromagnetic interactions involving Mn2+/3+ ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below TN. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin-lattice coupling.

AB - Tetragonal ferrimagnetic spinel Mn3O4 shows complex magnetic phase transitions due to competing antiferromagnetic interactions involving Mn2+/3+ ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below TN. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin-lattice coupling.

KW - Ferrimagnet

KW - Geometrical frustration

KW - Structural instability

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